Safety Practices and Hazards 
10  Cary 100/300/4000/5000/6000i/7000 Spectrophotometers User’s Guide 
The following symbols also appear on the instrument or in the 
documentation: 
I 
Mains power on 
0 
Mains power off 
 
Fuse 
 
Single phase alternating current 
Focus 
Vertical adjustment 
 
Horizontal adjustment 
 
Caution, disconnect all supplies, risk of electric shock 
 
High leakage current – ensure proper grounding 
Color coding 
The various indicator lights appearing on Agilent instruments and 
associated accessories are color-coded to represent the status of the 
instrument or accessory. 
 
A green light indicates the instrument is in normal/standby 
condition. 
 
An orange light indicates that a potential hazard is present. 
 
A blue light indicates that operator intervention is required. 
 
A red light warns of danger or an emergency.